ENTOMOLOGICAL CONTRIBUTIONS. 93 



Dr. Jesus Aleman in La Naturaleza, Vol. vii, where he de- 

 scribes E. socialis and disc asses its uses, and adds a plate 

 showing the butterfly in the act of laying eggs on an arbutus 

 leaf, the caterj)illar on a branch, and a colony of chrysa- 

 lides in the v^eculiarly shaped web so characteristic of the 

 species. 



As there is not the slightest doubt that Terhotii and 

 Menapia belong to the same genus as socialis, it naturally 

 follows that the name Neopliasia Behr, must be retired in 

 favor of ^wc/ieiVa"^ Westw., which is the older and a most 

 appropriate name, referring as it does to the workmanship 

 of the larva, most unusual in the series of Pier ides, and of 

 the Diurnal s in general. The genus Eucheira, comprising 

 now three species, their diagnoses for greater distinctness 

 may be formulated as follows: 



1. E. SOCIALIS Westw. Al?e anticae, macula alba discoi- 

 dali signatce, cunctse fascia alba per mediam alam trans- 

 versa, nee non punctis albis marginalibus instructae. 



2. F. Terlootii Behr. Alae anticce nigree, fascia alba 

 maculari margineni versus posteriorem usque ad basin alse 

 extensa, nee non punctis marginalibus instructa3. Alse 

 posticse alb?e concolores. Alse subtus ut supra, posticse 

 versus marginem tantum linea fusca signatce. 



Sierra Madre, Mexico, in regione coniferarum. 



3. E. Menapia Eelder. Abe candidoe, anticse apice ni- 

 grae, fascia maculari vel maculis disruptis albis signatae, 

 nee non macula discoidali nigra per marginem anteriorem 

 usque ad basin extensa, Alie posticse 6 ris concolores, ? n&e 

 margine nigro fascia maculari alba signatae. Alee subtus ut 

 supra sed utrisuque sexus alse posteriores linea fusca mar- 

 ginali interdum rubescente instructas. 



Sierra Nevada, California; Oregon; Vancouver Island. 



*From £u, well, Rud/ecp, hand. 



